Angsty Surviving Twins in Video Games.
- Ace Combat 7: Skies Unknown: A Brother–Sister Team variation of this occurs during your second encounter with mercenaries Rage and Scream near the end of the DLC mission "Anchorhead Raid", where shooting down one sibling will send the other into a Villainous Breakdown, complete with Sanity Slippage and the crazed laughter that goes with it. The trope even manifests itself in either sibling's subsequent behavior: killing Scream first will send Rage into a murderous frenzy, becoming much more aggressive in his effort to take you down and avenge his sister. If Rage goes down instead, Scream will proceed to completely fall apart into a sobbing, giggling wreck, becoming less aggressive and begging you to put her out of her misery.
- A short-lived version in Dead Rising 2. When you fight the Twins, you only have to kill one of them - the other breaks down, sobs that she'll never be complete again, and then commits seppuku.
- Occurs in Dragon Age II, as Hawke's two younger siblings are twins, and one of them (which one depends on Hawke's class) will die in the prologue. Carver reacts more immediately, lashing out and trying to blame Hawke for it, which is probably the closest the two of them ever got to coming to blows. Bethany's reaction is more delayed; she's sad, of course, in the first act, but she gets more and more depressed over it as time passes. At the end of the game, seven years after Carver died, Bethany says her biggest regret is that she didn't knock Carver on his "stupid ass" before he could charge that ogre.
- Wendy's special ability in Don't Starve is to summon the ghost of her dead twin, Abigail, to defend her. Reflecting this trope, Wendy takes reduced Sanity loss from darkness and monsters (due to already being mentally traumatised) and her quotes in general are suitably depressed and nihilistic.
- Double Subverted in Dragon Quest XI. Serena is devestated by her sister's death, but manages to get through the entire funeral without shedding a single tear so to provide emotional support for her parents. It's only when she's alone with the Luminary later that night that she finally allows herself to cry.
- In The Elder Scrolls V: Skyrim, the Shatter-Shield family in Windhelm is mourning the loss of daughter Friga. Friga's twin sister Nilsine is taking it extremely hard, especially since Friga was murdered by the local Serial Killer and her death feels incredibly senseless to Nilsine.
- In Far Cry: New Dawn, Mickey of the Highwaymen ends up becoming this after her sister Lou dies of her injuries following the battle with the Captain. Mickey feels that as the older twin, she was supposed to die first, and now she's failed at protecting her sister. Having a Villainous BSoD upon realizing she's also broken her promise to her mother not to end up becoming like their criminal father, and is willing to Face Death with Dignity at the Captain's hands. The Captain can let her live and leave to find her mother, though.
- Fatal Frame:
- In Fatal Frame II there's a ritual that, by default, produces these, since one twin must kill the other to appease the Hellish Abyss. Let's count the ways they produced Angsty Surviving Twins:
- Itsuki: to the point where he helps Yae and Sae escape so as to not suffer his and his brother's fate, and then commits suicide once he thinks they've escaped.
- Yae: so traumatized by losing her sister (and the entire village) to the Repentance that she lost all her memories of them. A rare example that doesn't directly involve the ritual.
- Mio: in the canon ending, so traumatized by the death of Mayu it leads directly into the 3rd game's plot, which deals with survivor guilt.
- Akane: so traumatized by her twin sister's death that her father made a doll that looked like Azami which ended up possessed by a malevolent spirit and led to her own possession and death.
- The only surviving twin that isn't angsty is Ryokan, and that's likely because it was years since his twin's death, so he's likely come to terms with it by now.
- Fatal Frame: Mask of the Lunar Eclipse has Kageri Sendou. After her twin sister's death, she "coped" with it by creating a life-sized doll in the image of said sister (which she named "Watashi"), treating it as if it were her sister for the rest of her life.
- In Fatal Frame II there's a ritual that, by default, produces these, since one twin must kill the other to appease the Hellish Abyss. Let's count the ways they produced Angsty Surviving Twins:
- Genshin Impact: Makoto, the former Electro Archon of Inazuma and Ei's twin sister, died during the Cataclysm 500 years ago. This has caused Ei to lock herself up within a "Plane of Euthymia" and refuse almost entirely to deal with the world directly, leaving it to a pre-programmed advanced puppet to carry out the role of the Raiden Shogun except for the rare occasions she directly controls it.
- In Golden Axe, the dwarf Gilius Thunderhead was planning to avenge his twin brother by defeating Death Adder, then committing suicide to join him in death.
- In the Halo series, Hunters tend to come as identical twin brothers, as the worm colony that makes up a Hunter will split into two when it grows too large. These twins have an extremely close bond and when you kill one the other will go absolutely apeshit on you.
- In Heavy Rain, this is part of the Origami Killer's motivation. Scott Shelby watched his twin brother die, and never really got over it. Since his father could have helped but didn't, Scott resorts to kidnapping young boys and forcing their fathers through a series of trials in the hopes of finding one who's willing to do anything to save their son.
- In the second Inazuma Eleven game, we're introduced to Fubuki Shirou whose younger twin Atsuya died in an avalanche along with their parents. The trauma resulted in Shirou developing a split personality based on Atsuya.
- Mona Sax in Max Payne, whose identical twin sister Lisa was murdered during the events of the first game. In the second game, Max waxes all poetical about how it must have been for Mona in his voice-over narration.
- Mother 3 has Lucas, who loses his mother and twin brother, Claus, within a day of each other in the game's first chapter. Almost all of his screentime after that point is of him grieving. His Silent Protagonist status after the Time Skip leaves much to interpretation, but if nothing else, he's melancholic and not particularly talkative.
- In NieR, after Devola is killed midway through the boss battle, Popola goes through a massive Villainous Breakdown where she's driven mad by grief. She rejects Nier's plea to give up, screaming at him that No One Stops. In NieR: Automata, the same thing happens with Eve after the death of Adam, which leads him to be the final boss of Ending A/B.
- Persona 5 Royal: Progressing through new character Kasumi Yoshizawa's Confidant will reveal that part of the reason she's stuck in a rut is that she recently lost her younger twin sister in a car accident. In reality, though, Royal's new Third Term reveals that it's actually Kasumi who died in that accident: the younger sister, Sumire, is the one you've been interacting with this whole time, and she was so traumatized by Kasumi's death that Well-Intentioned Extremist Maruki ended up granting her wish of "becoming Kasumi" so she wouldn't suffer anymore.
- We don't really see Viola DeWinter angsting over the death of her twin sister Kiki in Saints Row: The Third, but she is obviously shaken to the core by it and runs over to the Saints almost immediately, abandoning her old gang in the name of vengeance.
- Ette le Sheila in Shining Resonance is a Child Soldier who was experimented upon by the Sanguine Church in Gaelritz Prison alongside his twin sister Marion and the protagonist Yuma, the latter of whom escaped in the beginning of the game while the former perished at the hands of the Mad Scientist Joachim beforehand. However, Yuma notes while he was imprisoned, he heard the guards talking about how one of the twins died and thought it was Ette who was the one perished, but brushes it off as a case of Mistaken Identity. As it turns out, Ette really did die. The "Ette" they meet is actually Marion, who had Ette's Magical Eye implanted into her own body by Joachim after his death and, due to the magic of the eye and Marion's guilt and loss, his personality and soul survived inside of her. Joachim then Brainwashed them both into believing Marion was the one who died and allowing Ette's personality to become dominant. Marion and Ette eventually break free of the brainwashing and, with Yuma's help, allow Ette to pass on.
- In Xenosaga, even though Jr. (Rubedo) has spent the better part of two games trying to track down his Axe-Crazy twin Albedo, he can't stop himself from breaking down crying after he is forced to kill him in their final duel.
